Before You Start
What has to happen before Rough Color Grading can start - a ViBox 2.0 capture of the rough diamond and a rough model on Cutwise.
A run needs a ViBox 2.0 capture of the rough diamond and a model of the rough diamond. Without them, the Estimate Color menu cannot start a run.
What you need
| You need | Why Cutwise needs it | Row in the Requirements list |
|---|---|---|
| A ViBox 2.0 capture of the rough diamond in the Spectrum Reconstruction mode | Cutwise reconstructs the light absorption spectrum of the rough diamond from this capture | Spectrum Reconstruction done on ViBox 2.0 |
| A rough model on Cutwise | Cutwise aligns the model with the capture and plans the example diamonds from its weight | Rough model available on Cutwise |
Capturing the rough diamond on ViBox 2.0
On a ViBox 2.0 Tender system, the operator captures the rough diamond in this order:
- Place the rough diamond upright on the ViBox 2.0 stage.
- Close the lid.
- Capture the data for Spectrum Reconstruction. The back wall of the hemisphere (White Dome) must be closed for this capture. Close it with the toggle on top of the lid. Cutwise reconstructs the absorption spectrum from this capture, which uses the lower ring light.
- Open the back wall with the same toggle.
- Capture the data for 3D Model Generation. ViBox 2.0 captures the shape of the rough diamond with the rear collimated light, and Cutwise can build the rough model from it.
The ViBox 2.0 capture must contain the main-light raw video. Cutwise also needs one way to place the rough model in that video:
- The vertical shadow-light video with its metadata. Cutwise matches this video against the model.
- The scanner transform. A ViBox 2.0 capture carries it when the scanner built the 3D model itself. In this case no shadow video is needed.
Both have to be in the same capture as the main-light raw video.
The rough model
The model can come from two places:
- The ViBox 2.0 capture. ViBox 2.0 builds the model with 3D Model Generation. When no model is uploaded and the capture has shadow data, Cutwise builds a shadow model of the rough diamond as the first stage of the run.
- An uploaded model: a rough model from XRay or Helium Rough. External models in open formats work too.
Cutwise takes the weight of the rough diamond from the model. The weights of the example diamonds are this weight times a yield. See What a run estimates.
The Requirements list
Open the rough diamond page and click Estimate Color. If something is missing, the menu shows the Requirements list instead of the launch items and the prices. A red cross and the word Required mark each missing item.
| Row | Met when | What to do when it shows Required |
|---|---|---|
| Spectrum Reconstruction done on ViBox 2.0 | the rough diamond has a ViBox 2.0 capture with the main-light raw video, and the shadow-light video or the scanner transform in the same capture | capture the rough diamond on ViBox 2.0 in the Spectrum Reconstruction mode, with the White Dome back wall closed (step 3) |
| Rough model available on Cutwise | a model of the rough diamond is uploaded, or the capture has shadow data to build one from | capture the rough diamond in the 3D Model Generation mode (step 5), or upload a model from XRay, Helium Rough or another source in an open format |
When both rows are met, the menu offers Rough Color Grading and the other launch items.
What your account needs
Plan estimation needs a positive balance. Cutwise checks the balance before it accepts a plan.
Anyone who can see the rough diamond can see a finished estimate, buyers included.
Spectrum Reconstruction
Spectrum Reconstruction was a separate service before, with its own button and a spectrum file to download. Now it is the first stage of Rough Color Grading:
- Cutwise registers the rough model against the ViBox 2.0 capture. When ViBox 2.0 built the model, Cutwise uses the scanner transform instead.
- Cutwise estimates the absorption spectrum of the rough diamond from the capture.
- Cutwise renders diamonds through that spectrum.
The spectrum stays inside Cutwise. You cannot download it. You see its result in the Color estimation block. To check the spectrum by eye, open Estimate Color → Verify Estimated Spectrum. See Running Rough Color Grading.